Anti-Hero by C.W. Farnsworth

Playboy heir to an empire, Kit Kensington has it all: money, status, looks, power. As Kensington Consolidated’s newest employee (and future CEO), Kit arrives ready to exceed the high expectations that accompany his last name. However, when his new assistant turns out to be Collins Tate, he finds himself off-balance for the first time in his life.
With one glaring exception, Collins Tate has spent six years carefully avoiding the immature billionaire who seems to be universally adored by everyone else. Following an ill-advised bet, which resulted in a night with him, Collins is determined to return to being the one woman who finds Kit resistible. Except she really needs a fresh start and a new job.
Surprisingly, working with Kit isn’t awful. Shockingly, they make a good team. For the first time in years, Collins starts to feel like she made the right decision.
Until their agreement to pretend that night never happened becomes impossible.
Kit Kensington might be a decent boss. But he’s the last person Collins would have picked as the father of her child.

Too bad … it’s too late.